William mcgregor



(N0 Model.)

W. MOGREGOR.

v BUNG CUTTING MACHINE. No. 245,650. Patented Aug. 16,1881

Miran STATES- PATENT FFICEQ WILLIAM MOGREGOR, OF PEORIA, ILL., ASSIGNOR TO ROBERTDTOGREGOR, OF GUELPH, ONTARIO, CANADA.

'BUNG-CUTTING MIACHIFNE.

SPECIFICATION forming part of Letters Patent No. 245,650, dated August 16, 1881.

Application filed May 31, 1881. (No model.)

To all whom it may concern Be it known that 1, WILLIAM lVIGGREGOR, of Peoria, in the county of Peoria, in the State of Illinois, have invented an Improved Bung- GuttingMachine, and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the annexed drawings, making a part of this specification-in which like letters of reference refer to like parts, and in which Figure 1 represents front elevation; Fig. 3, sectional side elevation; Fig. 2, enlarged sectional view of cutter-head and its shaft, Fig. 4, end view of cutter-head; Fig. 6; section of cutter-head through a: m,- Fig. 5, elevation of bung-holder or bolt Y.

The construction of this machine consists, essentially, of agang of revolving cutter-heads consisting of a cylindrical saw, in combination with two turning-chisels, and having underneath said cutter-heads a vertically-moving table, upon which a number of strips of wood are held.

The cutter-head A, having the cylinder-saw B screwed up into it, as in Fig. 2, is held on the end of the shaft It by the set-screw M. The slant-edged knives or turning-chisels K K are held in the recesses through the side of the cutter-head A by the set-screws b b, said knives 0 K having a slot for reception of screw 1) to permit of adjustment.

Upon the shaft It is secured the pulley O, by which the shaft and cutter-head A are driven. Longitudinally through the center of said shaft R is drilled a hole for the reception of the small rod S, one end of which terminates in the head S.

In the drawings there are six cutter-heads,

A, with shafts R and pulleys 0 represented as used in the bung-cutting machine. The shafts B have hearings on the cross-beams V V, while the rod S has beside its bearing in the shaft R hearings on the cross-beams V V. The upper end of rod S enters a hole in the 5 under side of the weight WV sufficiently far to securely hold said weight. The collar Z, with its set-screw, is adjusted along the rod S till the weight W presses down said rod S till its head S just comes to the teeth of the cylin- 5o der-saw B.

Power is communicated to the pulleys O,

and hence to the cutter-heads A, by a belt run ning from each pulley O to a long horizontal drum, 0.

The wood from which the bungs are to be 5 made is in the shape of longstrips of the required depth of which the bung is to be, and width equal to largest diameter of the bung. These strips are fed along on the table L in grooves by a roller and automatic mechanism. .60 (Not shown in the drawings.) The table L has an up-and-down motion communicated to itby means of the eccentrics E E and connectingrods E E. This motion is just enough to carry the upper side of the wooden strips 0 up until it almost touches the lower end of the cutter-head A, or, in other words, until the cylinder-saw B has cut through. the wooden strip 0. The downward movement of the table L is far enough to clear the wooden strip from the teeth of the saw B. The table L is kept in correct movement by means of the guides J J and the braces I, with their rollers, thathold against the back side of the uprights T T of the frame-work. The horizontal bar H 7 5 has also an up-and-down motion communicated to it greater than that of the table L by means of the connecting-rods D D and the eccentrics E E with pins F F, which here serve as cranks. This horizontal bar H, sliding up and down in the guides J J, has bolted to it a number of bolts, Y, equal in number to the cutter-heads. The headsUof these boltsY are a little smaller in diameter than the inside of the saw 13, and arefurnished with spursU. These boltsYare so placed along on the barH that their heads U shall enter the saws B when said bar H is moved upward. This vertical motion of the bar H is such that when it gets to its extreme upward limit the heads U of the bolts Yjust o begin to enter the spacein the cutter-head A, at the lower corners of the edges of the knives K, and at its lower limit the spurs U of the heads U are a little below the under sides of the wooden strips 0. The relative motions of 5 the table L and bar H are such that the table L has pushed up the wooden strips and got them almost sawed through by the cylindersaw B before the bolts Y have brought up their heads U and spurs U to engage in the mo wooden blanks that are being sawed out.

Power is communicated to the eccentrics E E by means of the pulley G and appropriate belting and pulleys, so that while the pulley Gmakes one revolution the cutter-head A shall make two hundred, or more.

The mode of operation of this machine is as follows: As the pulley G revolves the table L is drawn up until the strips of wood 0 reach the teeth of the saw B, then they are pressedfirmly down upon, as they continue to rise, by the rods S with the weights W. When a blank has been nearly sawed through by the saw B the bolt-head U is brought firmly up till its spurs are pressed into the blank by the time it has been sawed entirely out. Then the bolt-head U continues to rise, the blank being held meanwhile by the pressure of the weighted rod S until the top of said blank has reached the upper corners of the knives K K, and has been turned to the required slant by said knives. Then the bolt-heads 'U move downward, the weighted rod S pressing down the finished bungs until the bar H reaches its lowest position. In the meantime the table L has also reached its lowest position, and the strips of wood 0 are accordingly pushed forward into place, knocking at the same time the completed bungs away. In the same way another series of bungs is sawed and turned.

What I claim as my invention, and for which I desire by Letters Patent, is as follows, to wit:

1. In bungcuttin g machines, the cutter-head A, with knives K K, the cylinder-saw B attached thereto, the hollow shaft R and pulley O, in combination with the weighted rod S, and the spurred bolt or bung-holder Y, provided with mechanism for giving it a reciproeating vertical motion, substantially as and for the purpose set forth.

2. The cutter-head A, with knives K K, cylinder-saw B, hollow shaft R, and pulley O, in combination with the weighted rod S, vertically-moving bar H, with bolt or bung-holder Y, substantially as and for the purpose specilied.

3. The cutter-head A, with knives K K, cylinder-saw B, hollow shaft R. with pulley 0, weighted rod S, vertical] y-movin g table L,with grooves for the reception of the Wooden strips 0, and vertically-moving bar H, with spurred bolts or bung-holds Y, substantially as and for the purpose described.

In testimony that I claim the foregoing invention I have hereunto set my hand.

WILLIAM iucenneon.

WVitnesses:

JNo. CHAS. BIGKET, H. W. WELLs. 

